AWS-Certified-Developer-Associate Amazon Exam Questions and Free Practice Test

Question 61

An online gaming site asked you if you can deploy a database that is a fast, highly scalable NoSQL database service in AWS for a new site that he wants to build. Which database should you recommend?

A. Amazon Redshift

B. Amazon SimpIeDB

C. Amazon DynamoDB

D. Amazon RDS

Correct Answer:C
Amazon DynamoDB is ideal for database applications that require very low latency and predictable performance at any scale but don’t need complex querying capabilities like joins or transactions. Amazon DynamoDB is a fully-managed NoSQL database service that offers high performance, predictable throughput and low cost. It is easy to set up, operate, and scale.
With Amazon DynamoDB, you can start small, specify the throughput and storage you need, and easily scale your capacity requirements on the fly. Amazon DynamoDB automatically partitions data over a
number of servers to meet your request capacity. In addition, DynamoDB automatically replicates your data synchronously across multiple Availability Zones within an AWS Region to ensure high-availability and data durability.
Reference: https://aws.amazon.com/running_databases/#dynamodb_anchor

Question 62

In regards to VPC, select the correct statement:

A. You can associate multiple subnets with the same Route Table.

B. You can associate multiple subnets with the same Route Table, but you can't associate a subnet with only one Route Table.

C. You can't associate multiple subnets with the same Route Table.

D. None of thes

Correct Answer:A
Every subnet in your VPC must be associated with exactly one Route Table. However, multiple subnets can be associated with the same Route Table.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Route_TabIes.html

Question 63

Which of the following device names is recommended for an EBS volume that can be attached to an Amazon EC2 Instance running Windows?

A. xvd[a-e]

B. /mnt/sd[b-e]

C. xvd[f-p]

D. /dev/sda1

Correct Answer:C
The xvd[f-p] is the recommended device name for EBS volumes that can be attached to the Amazon EC2 Instances running on Windows.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/device_naming.html

Question 64

How can you secure data at rest on an EBS volume?

A. Attach the volume to an instance using EC2's SSL interface.

B. Write the data randomly instead of sequentially.

C. Use an encrypted file system on top of the BBS volume.

D. Encrypt the volume using the S3 server-side encryption service.

E. Create an IAM policy that restricts read and write access to the volum

Correct Answer:C

Question 65

When you create a table with a hash-and-range key, you must define one or more secondary indexes on that table.

A. False, hash-range key is another name for secondary index

B. False, it is optional

C. True

D. False, when you have Hash-Range key you cannot define Secondary index

Correct Answer:B
When you create a table with a hash-and-range key in DynamoDB, you can also define one or more secondary indexes on that table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LSI.htmI

Question 66

Is it possible to create an S3 bucket accessible only by a certain IAM user, using policies in a C|oudFormation template?

A. No, you can only create the S3 bucket but not the IAM user.

B. S3 is not supported by CIoudFormation.

C. Yes, all these resources can be created using a CIoudFormation template

D. No, in the same template you can only create the S3 bucket and the realtive polic

Correct Answer:C
With AWS Identity and Access Management (IAM), you can create IAM users to control who has access to which resources in your AWS account. You can use IAM with AWS CIoudFormation to control what AWS CIoudFormation actions users can perform, such as view stack templates, create stacks, or delete stacks.
In addition to AWS CIoudFormation actions, you can manage what AWS services and resources are available to each user.

START AWS-Certified-Developer-Associate EXAM